." >>> on the "cbs moneywatch," the days may be numbered for tax-free web shopping. and why you want to check your lottery tickets. wendy gillette has more. >> good morning, anne-marie. the cost of online shopping may be headed up as more states could start collecting sales taxes on internet purchases. this after the supreme court refused to get involved in state efforts to force online retailers to collect sales taxes from their customers. the case involved a lower court ruling in new york. it ruled that websites like amazon and overstock must pay sales tax the same way in-state businesses do. the supreme court decision came on what appears to be the busiest online shopping day of the year, cyber monday. early indications are that online sales yesterday were up 17.5% from last year. mobile devices accounted for nearly a third of all online shopping. >>> stocks in asia finished mostly lower amid key reports in the u.s. hong kong's hang seng's lost 0.5%. tokyo's nikkei gained 0.5% to its highest close in six years thanks to a weekend yen. the dow jones lost 77 points